Does HMRC Know About Your Rental Income? What Letting Agents and Deposit Schemes Tell It (2026)

Often it does, and where it does not, it has the power to ask. HMRC already collects rental data in bulk from letting agents and tenancy deposit schemes: it sends them more than 10,000 notices a year, each asking for a tax year's records. Booking platforms run from the UK have collected their hosts' details since 1 January 2024 and report them to HMRC every January. And on 28 October 2026 HMRC opened a consultation on making agents and deposit schemes report as a standing duty, monthly or quarterly, with each landlord's tax reference, such as a National Insurance number, on the record. It closes on 20 January 2027.

So if an agent found your tenant or collects your rent, if you protected a deposit, or if you take bookings through a platform, a record of the let probably sits in data HMRC can ask for or already receives. This guide sets out each source and the rule behind it, what the consultation proposes and when, and what to do if some of your rent has never been declared. Every rule below was read on GOV.UK and legislation.gov.uk on 5 November 2026.

Not tax advice. This is general information from HMRC's guidance and the law. If you owe tax for past years, or your case is unusual, talk to an accountant or a tax adviser.

What HMRC can already see

Five records of a let or a purchase that HMRC receives, can ask for or can look up:

Letting agents

HMRC's power to ask is in Schedule 23 to the Finance Act 2011. Paragraph 18 makes a "relevant data-holder" of anyone who, as agent, manages land or receives rent from it, and says that managing includes marketing a property to tenants and searching for tenants. So an agent you paid only to find a tenant is covered, not just one that collects the rent each month.

What HMRC can ask for is set by regulation 16 of the Data-gathering Powers (Relevant Data) Regulations 2012: the terms of the let, anything paid for the grant of the tenancy, and details of the landlord the agent acts for, including the payments. A notice can only ask for data that could bear on tax periods ending in the 4 years before it is given (paragraph 3). That limits what the agent can be asked for. How far back HMRC can assess the tax itself is a separate rule, set out on the Let Property Campaign page.

How the requests work today, in HMRC's own description in the consultation:

• More than 10,000 notices a year go to letting agents and deposit schemes for property income data.
• The data is asked for once a year, for the tax year, and the agent has 60 days to send it.
• It arrives as spreadsheets by email, with names and addresses but often without a tax reference, so HMRC has to rely on what it calls less robust matching methods.
• It is already used in compliance campaigns against unreported property income, among them the Let Property Campaign and the Virtual Street Sweep campaign.

Agents acting for a landlord who lives abroad already report under the Non-Resident Landlord Scheme, which is why the new proposals leave them out.

Tenancy deposit schemes

The consultation names the authorised tenancy deposit protection schemes as the second group HMRC already sends notices to. It describes them as a small number of providers holding information on UK residential tenancies and on every kind of landlord: individuals, companies, partnerships and trusts.

For a landlord who manages the let alone, this is the source that counts. There may be no agent at all, but if you protected the deposit, the scheme holds a record of the tenancy and of you as its landlord. The deposit protection guide covers the schemes themselves.

Booking platforms

Since 1 January 2024, a digital platform run from the UK that lets people rent out property has had to collect and check its hosts' details and report them to HMRC. GOV.UK's own example is a home rental website that takes the renters' payments. From an individual host the platform asks for:

• your full name, the address where you normally live and your date of birth
• your National Insurance number
• the address of each property you let through it

Each report covers a calendar year and reaches HMRC by the following 31 January, so 2024's bookings were reported by 31 January 2025. It shows what you were paid, quarter by quarter, and for each property its address and, where the platform has it, the number of days it was let. The exception for small sellers (fewer than 30 sales of goods for 2,000 euros or less in a year) is for goods only: it does not apply to renting out property.

The platform has to give you a copy of what it reported. HMRC's guidance says a report "does not automatically mean that you owe tax", but working out the income for the tax year from 6 April is yours to do.

Your purchase, the Land Registry and HMRC's own systems

When you buy a home in England or Northern Ireland, the Stamp Duty Land Tax return goes to HMRC itself, within 14 days of completion, usually sent by your conveyancer. Ownership is public too: for £7 anyone can download the title register of a property in England or Wales, and it usually shows who owns it, what it last sold for and whether there is a mortgage.

HMRC does not publish a list of the records it matches. Its privacy notice, updated on 17 August 2026, names "landlords and letting agencies", "digital platforms", "banks and other financial institutions", "other government departments and public authorities" and "publicly available sources" among the third parties it collects information from. Its Let Property Campaign guide says it may check what it receives against its own records, including information from other government departments and overseas tax authorities. The system behind much of that matching is called Connect: an HMRC paper from June 2021 says its Customer Compliance Group uses Connect "to identify potential risks of non-compliance", including risks on Self Assessment repayments. HMRC has not published what data Connect holds.

The proposed crackdown: what the consultation would change

HMRC's consultation, Improving Property Income Data Reporting, was published on Budget day, 28 October 2026, and closes at 11:59pm on 20 January 2027. It is a proposal, not law. The power behind it already is law: Schedule 23 to the Finance Act 2026 (Royal Assent 18 March 2026) lets the Treasury require named data-holders to report "on an ongoing basis", in regulations. The rules for property data would come in those regulations, after the consultation.

What it proposes:

• Who reports. Letting agents acting for UK-based landlords who let UK residential property, and the authorised deposit schemes. Agents for non-resident landlords stay outside, as they already report under that scheme.
• Whose lets. Every kind of landlord: individuals, companies, partnerships and trusts.
• No lower limit. "The new reporting obligations will therefore apply without a de minimis threshold." A small let would be reported the same way as a large one.
• More often. Monthly or quarterly instead of once a year, sent within one month, two weeks or less of the end of each period. The consultation asks which.
• Your tax reference on the record. Agents and schemes would ask for and report tax references, which may include your National Insurance number, a company's registration number, a VAT number where there is one, or a Unique Taxpayer Reference for partnerships, trustees, estates and non-resident landlords without either. New landlords would be asked when they sign up; for existing ones, the agent would have to make reasonable efforts to get it.
• Possibly more fields. Among those it asks about: your date of birth, the tenancy start and end dates, gross rent, management fees, expenses taken off the rent, a property reference number and the landlord number from the new PRS Database.
• Digital returns. A set format, such as XML or JSON, sent through HMRC's new Third-Party Data Ingestion System, in place of spreadsheets by email.

Landlords get no new duty from it: the duty falls on agents and schemes. The Act does set penalties for a data-holder that fails to report as the regulations require: up to £5,000, then up to £600 a day if the failure goes on after that penalty is assessed, and up to £100 for each person or account whose details it fails to verify.

The consultation is open to anyone with a view, landlords included. Responses go by email to thirdpartydata@hmrc.gov.uk.

When it would start

The consultation gives no start date for property data. The one start year it gives for these reforms, 2028, belongs to the first phase of the same reforms, card sales and interest data. Property and dividend data are the second phase. HMRC also says it is working with the Ministry of Housing, Communities and Local Government so that these rules and the new landlords register's own reporting are considered together.

What more frequent reporting would mean for how soon HMRC sees a rent:

The last two rows are worked from the options in the consultation, not from a decision.

Why it matters who finds it first

Whether you told HMRC first or HMRC found the income changes the penalty. GOV.UK's page on paying tax on rent says that if you declare unpaid tax yourself, any penalty will be lower "than if HMRC find out about the income themselves".

HMRC's factsheet on failure to notify (CC/FS11) draws the line. A disclosure is unprompted when you make it "before you had any reason to believe" HMRC was about to find the failure, and prompted at any other time. Each source above makes it more likely that HMRC holds the data before you speak.

A worked example. A landlord let a flat through an agent for one tax year, 2023-24, and never registered for Self Assessment. The tax for that year, due on 31 January 2025, comes to £2,400, and the failure was not deliberate. Telling HMRC now is more than 12 months after the tax was due:

The tax and the interest on it are owed either way. Where in the range the penalty lands depends on how fully you tell HMRC what happened, help it work out the tax and give it access to your records. With a reasonable excuse for a failure that was not deliberate there is no penalty, provided you told HMRC without unreasonable delay once the excuse ended. A deliberate failure starts at 20% unprompted and 35% prompted.

If some of your rent was never declared

First, check whether you needed to tell HMRC

Not every let does. On GOV.UK's figures, for property you own yourself:

• The first £1,000 of rental income in a year is tax-free: the property allowance.
• Over £1,000 and up to £2,500, you contact HMRC.
• Over £2,500 after allowable expenses, or £10,000 before them, the income goes on a Self Assessment return. If you do not usually send one, you register by 5 October after the tax year.
• Letting part of your own home, the Rent a Room Scheme may cover £7,500 a year tax-free, or £3,750 if you share the income.

HMRC's tool, Check if you need to tell HMRC about your rental income, works through your own figures, including lets through an agent or online.

Then the Let Property Campaign

If you owe tax on past rent, HMRC's route is the Let Property Campaign, for individual landlords of residential property in the UK or abroad. You tell HMRC you will make a disclosure, then have 90 days from its acknowledgement to send it and pay. HMRC's guide is plain about waiting: if you do not come forward now and HMRC finds out later, "you could get higher penalties or face criminal prosecution". Once HMRC has told you it is opening an enquiry or a compliance check, a campaign disclosure is unlikely to be accepted, and you tell the officer running it instead.

The Let Property Campaign guide covers the rest: how many years back, the penalty ranges, the interest and HMRC's five steps. LetCompliance does not make the disclosure.

Records that agree with what HMRC is sent

The consultation's stated aim is to match the data from agents and schemes to the right taxpayer and to spot omissions sooner. The plainest protection is a return built the same way the agent's figures are.

On the SA105, box 20 takes your total rental income, and the agent's fees are claimed as an expense: in box 27, or inside the single total in box 29 if your property income is under £90,000. Say an agent collects £1,150 a month and keeps 12% as its fee:

Box 20 is £13,800, with the £1,656 fee claimed as an expense. Putting the £12,144 you received in box 20 and claiming no fee gives the same profit, but your return then shows £1,656 less rent than the agent collected, and gross rent and management fees are both on the consultation's list of fields agents may be asked to report. The guide to filling in the SA105 box by box covers the rest of the form.

Making Tax Digital puts your own figures on a quarterly timetable too. Landlords and sole traders with qualifying income over £50,000 on their 2024 to 2025 return have had to use it since 6 April 2026. The threshold is £30,000 from 6 April 2027, judged on the 2025 to 2026 return, and £20,000 from 6 April 2028. The consultation says more timely data from third parties could support prompts and feedback on the accuracy of quarterly updates. Making Tax Digital when an agent collects the rent covers who sends what.

Keeping the rent the way HMRC will see it

Keep every rent on the record it belongs to. LetCompliance runs the let from one login: the tenancy, the rent, the repairs and the money. On a paid plan, from £7.99 a month, rent you mark paid, or collect by Direct Debit, is posted as income on its date against its property and tax year. A bank statement saved as CSV is matched line by line to the rent charges and costs already there, and nothing is recorded until you confirm it. Costs sit in their SA105 categories, an agent's fee in box 27 among them, and the SA105 tax pack lays each tax year out in its boxes, with the rent in box 20. Making Tax Digital comes with every paid plan: LetCompliance is recognised by HMRC for Making Tax Digital and sends the quarterly updates for your UK property income from the same records. Your accountant can read the figures, the ledger and the receipts through a read-only link, on every plan. A Let Property Campaign disclosure is made by you or an adviser, not from LetCompliance.